Displaying 1 result from an estimated 1 matches for "file_module_x86_id_279".
2017 May 07
2
X86 disassembler fails to handle 0x66 prefix?
Hello,
I have seen this bug for quite a while, and even in the latest code it
is still there: that is X86 disassembler does not handle 0x66 prefix
properly, if it is put behind 0xF3 prefix.
The below commands should return the same output, but not.
$ echo "0xf3 0x66 0xa5"|./build/bin/llvm-mc --disassemble
-triple=x86_64 -output-asm-variant=1
.text
rep
movsw word ptr es:[rdi], word ptr